Calorie restriction, often inherent in diets like vegan, vegetarian, or potato diets, can lead to improvements in health and insulin sensitivity.

“you could improve with fasting right you could eat no food and see an improvement and you mentioned this earlier with regard to the potato diet and other diets and it's really important to consider that many of the studies with vegan and vegetarian diets are calorie restricted as are as was the twinkie diet as are these potato diets because you simply cannot eat enough calories from potatoes so anyone with metabolic dysfunction is going to see an improvement in their overall health and insulin sensitivity when they have calorie-restricted diet”